Download or read book Uncertainties in GPS Positioning written by Alan Oxley and published by Academic Press. This book was released on 2017-01-17 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Uncertainties in GPS Positioning: A Mathematical Discourse describes the calculations performed by a GPS receiver and the problems associated with ensuring that the derived location is a close match to the actual location. Inaccuracies in calculating a location can have serious repercussions, so this book is a timely source for information on this rapidly evolving technology. - Covers how a GPS receiver works and how the earth is modeled so position data can be calculated - Discusses the different signals and clock speeds of the satellites, the receivers, and sources of inaccuracy - Examines how the errors are distributed in the data and provides examples
Download or read book Guide to GPS Positioning written by David Wells and published by . This book was released on 1987 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Guide to GPS Positioning is a self-contained introduction to the Global Positioning System, designed to be used in any of the following three ways: as a self-study guide, as lecture notes for formal post-secondary education courses, or as hand-out material to support short-course and seminar presentations on GPS." -- Introduction.
Download or read book GPS Positioning Guide written by Geomatics Canada and published by The Division. This book was released on 1994 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Global Positioning System is a satellite-based radio-navigation system established for military uses, which as a byproduct has been made available to the civilian community. The system can be used to achieve position accuracies ranging from 100 meters down to a few millimeters, depending on the equipment used and procedures followed. It is thus important for system users to understand what techniques are required to achieve desired accuracies with minimal cost and complexity. These guidelines contain four main parts geared toward achieving that objectives. They explain the fundamentals of global positioning, describe positioning techniques, and discuss procedures for application of the system. General considerations and procedures common to almost any positioning project are presented, along with special considerations which must be made when determining elevations. The appendices include a glossary and a guide to information sources.
Download or read book Principles of Modeling Uncertainties in Spatial Data and Spatial Analyses written by Wenzhong Shi and published by CRC Press. This book was released on 2009-09-30 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: When compared to classical sciences such as math, with roots in prehistory, and physics, with roots in antiquity, geographical information science (GISci) is the new kid on the block. Its theoretical foundations are therefore still developing and data quality and uncertainty modeling for spatial data and spatial analysis is an important branch of t
Download or read book Analysis of Atmospheric Delays and Asymmetric Positioning Errors in the Global Positioning System written by Kathryn Materna and published by . This book was released on 2014 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract Errors in modeling atmospheric delays are one of the limiting factors in the accuracy of GPS position determination. In regions with uneven topography, atmospheric delay phenomena can be especially complicated. Current delay models used in analyzing GPS data from the Plate Boundary Observatory (PBO) are successful in achieving millimeter-level accuracy at most locations; however, at a subset of stations, the time series for position estimates contain an unusually large number of outliers. In many cases these outliers are oriented in the same direction. The stations which exhibit asymmetric outliers occur in various places across the PBO network, but they are especially numerous in California's Mammoth Lakes region, which served as a case study for this project. The phenomenon of skewed residuals was analyzed by removing secular trends and variations with periods longer than 75 days from the signal using a median filter. The skewness of the station position residuals was subsequently calculated in the north, east and up directions. In the cases examined, typical position outliers are 5-15 mm. In extreme cases, skewed position residuals, not related to snow on antennas, can be as large as 20 mm. I examined the causes of the skewness through site-by-site comparisons with topographic data and various forms of weather data such as numerical weather models, radiosondes, and satellite images. Analysis suggests that the direction of the skewness is generally parallel to the local topographic gradient at a scale of several kilometers. Comparison with weather data suggests that outlier data points in the Mammoth Lakes region occur when lee waves are likely to form downstream of the Sierra Nevada Mountains. The results imply that coupling between the atmosphere and local topography, e.g. lee waves, is responsible for the phenomenon of skewed residuals.
Download or read book The Global Positioning System written by National Research Council and published by National Academies Press. This book was released on 1995-05-31 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Global Positioning System (GPS) is a satellite-based navigation system that was originally designed for the U.S. military. However, the number of civilian GPS users now exceeds the military users, and many commercial markets have emerged. This book identifies technical improvements that would enhance military, civilian, and commercial use of the GPS. Several technical improvements are recommended that could be made to enhance the overall system performance.
Download or read book Guidelines for the Application of GPS Positioning written by Canada. Ecosystem Sciences and Evaluation Directorate and published by Geodetic Survey Divison, Canada Centre for Surveying. This book was released on 1993 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Global Positioning System (GPS) is a satellite-based radio-navigation system established by the United States Department of Defense for military positioning applications that as a by-product has been made available to the civilian community. These guidelines provide professionals working the field of water resources with the background and procedural information needed to effectively apply GPS technology to enhance the value of their field measurements and increase productivity. The guide explains the fundamentals of GPS, basic positioning concepts, positioning techniques, and procedures for the application of GPS.
Download or read book Global Positioning System written by Pratap Misra and published by Ingram. This book was released on 2006 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this widely praised book offers a comprehensive introduction to GPS: the system, signals, receivers, measurements, and algorithms for estimation of position, velocity, and time. It is intended as a textbook for a senior- or graduate-level engineering course and a self-study guide for practicing engineers.The book is divided into four parts. Part I introduces the basic framework for a global navigation satellite system, including coordinate frames, time references, and satellite orbits, and provides an overview of GPS, GLONASS, and Galileo. Part II describes the fruits of GPS: estimation of position, velocity, and time. Part III discusses the ingenious structure of the GPS signals. Part IV introduces the signal processing steps required to extract the necessary measurements from these signals, and explores the challenges posed by signal blockage and RFI.
Download or read book Positioning with GPS 1985 written by and published by . This book was released on 1985 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to GPS written by Ahmed El-Rabbany and published by Artech House. This book was released on 2002 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: If you're looking for an up-to-date, easy-to-understand treatment of the GPS (Global Positioning System), this one-of-a-kind resource offers you the knowledge you need for your work, without bogging you down with advanced mathematics. It addresses all aspects of the GPS, emphasizes GPS applications, examines the GPS signal structure, and covers the key types of measurement being utilized in the field today.
Download or read book Location and Context Awareness written by Tanzeem Choudhury and published by Springer Science & Business Media. This book was released on 2009-04-22 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 4th International Symposium on Location and Context Awareness, LoCA 2009, held in Tokyo, Japan, in May 2009. The 18 revised full papers presented were carefully selected from 77 submissions. The papers describe original, previously unpublished research results, including new hardware platforms for sensing location and context, machine learning techniques for inferring user location and context from low-level sensor data, location and context representation, management, and distribution, and privacy policies and communication protocols for location and context information.
Download or read book Global Positioning Systems Technology and Its Application in Environmental Programs written by Robert Puterski and published by . This book was released on 1992 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Sensing of Coastal Environments written by Yeqiao Wang and published by CRC Press. This book was released on 2009-12-09 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: As coastal environments around the world face unprecedented natural and anthropogenic threats, advancements in the technologies that support geospatial data acquisition, imaging, and computing have profoundly enhanced monitoring capabilities in coastal studies. Providing systematic treatment of the key developments, Remote Sensing of Coastal Enviro
Download or read book Global Positioning System GPS Error Source Prediction written by Marcus G. Ferguson and published by . This book was released on 2000-03-01 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the initiation of the navigation accuracy prediction algorithm used to estimate the amount of GPS solution (location and time) error for receivers, the capability to accurately predict solution errors due to the major GPS error sources is growing. Although some sources of error within the GPS solution have been previously analyzed, modeled, and/or accounted for within various modeling efforts, a formal evaluation of the seven major error sources that distort GPS activity has not been officially conducted up until this point. This research offers a logical assessment of all the major GPS error sources and their definitive impact on the end user. This research describes the major error sources in the GPS solution, which includes error sources from the spacecraft propagation of the signal through space, and receiver errors for a representative family of receivers. Once we define these error sources, we prioritize these sources with respect to benefit-to-cost ratios. We base the benefit-to-cost ratio on an error's accountability to the modeling effort required. This research recommends a prioritized order of future enhancements for error source implementation and improvements in future GPS accuracy prediction models, with a complete explanation of the tradeoffs associated with each improvement.
Download or read book Progress In Astronautics and Aeronautics written by Bradford W. Parkinson and published by AIAA. This book was released on 1996 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Satellite Positioning written by Shuanggen Jin and published by BoD – Books on Demand. This book was released on 2015-03-11 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Satellite positioning techniques, particularly global navigation satellite systems (GNSS), are capable of measuring small changes of the Earths shape and atmosphere, as well as surface characteristics with an unprecedented accuracy. This book is devoted to presenting recent results and development in satellite positioning technique and applications, including GNSS positioning methods, models, atmospheric sounding, and reflectometry as well their applications in the atmosphere, land, oceans and cryosphere. This book provides a good reference for satellite positioning techniques, engineers, scientists as well as user community.
Download or read book The Global Positioning System written by Scott Pace and published by RAND Corporation. This book was released on 1995 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive assessment of the challenges and opportunities created by worldwide access to this revolutionary technology.
